| 1 | /* |
| 2 | * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com> |
| 3 | * Copyright (C) 2014 - Christian Babeux <christian.babeux@efficios.com> |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 6 | * of this software and associated documentation files (the "Software"), to |
| 7 | * deal in the Software without restriction, including without limitation the |
| 8 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 9 | * sell copies of the Software, and to permit persons to whom the Software is |
| 10 | * furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included in |
| 13 | * all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | import java.io.IOException; |
| 25 | |
| 26 | import org.apache.log4j.Appender; |
| 27 | import org.apache.log4j.BasicConfigurator; |
| 28 | import org.apache.log4j.Logger; |
| 29 | import org.lttng.ust.agent.log4j.LttngLogAppender; |
| 30 | |
| 31 | /** |
| 32 | * Example application using the LTTng-UST Java JUL agent. |
| 33 | * |
| 34 | * @author Alexandre Montplaisir |
| 35 | * @author Christian Babeux |
| 36 | */ |
| 37 | public class Hello { |
| 38 | |
| 39 | private static final Logger HELLO_LOG = Logger.getLogger(Hello.class); |
| 40 | |
| 41 | /** |
| 42 | * Application start |
| 43 | * |
| 44 | * @param args |
| 45 | * Command-line arguments |
| 46 | * @throws IOException |
| 47 | * @throws InterruptedException |
| 48 | */ |
| 49 | public static void main(String args[]) throws IOException, InterruptedException { |
| 50 | /* Start with the default Log4j configuration, which logs to console */ |
| 51 | BasicConfigurator.configure(); |
| 52 | |
| 53 | /* |
| 54 | * Add a LTTng log appender to the logger, which will also send the |
| 55 | * logged events to UST. |
| 56 | */ |
| 57 | Appender lttngAppender = new LttngLogAppender(); |
| 58 | HELLO_LOG.addAppender(lttngAppender); |
| 59 | |
| 60 | /* |
| 61 | * Here we've set up the appender programmatically, but it could also be |
| 62 | * defined at runtime, by reading a configuration file for example: |
| 63 | */ |
| 64 | // PropertyConfigurator.configure(fileName); |
| 65 | |
| 66 | /* |
| 67 | * Gives you time to do some lttng commands before any event is hit. |
| 68 | */ |
| 69 | Thread.sleep(5000); |
| 70 | |
| 71 | /* Trigger a tracing event using the Log4j Logger created before. */ |
| 72 | HELLO_LOG.info("Hello World, the answer is " + 42); |
| 73 | |
| 74 | System.out.println("Firing second event in 5 seconds..."); |
| 75 | Thread.sleep(5000); |
| 76 | HELLO_LOG.info("Hello World delayed..."); |
| 77 | |
| 78 | lttngAppender.close(); |
| 79 | } |
| 80 | } |